Question

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Answer 1

Răspuns:

$({1} \frac{1}{2}) ^{4} \div \frac{27}{2} - \frac{3}{10} =( {1 - \frac{1}{2}) }^{4} \times \frac{2}{27} - \frac{3}{10} = \frac{2 \times ({1 \frac{1}{2}) }^{4} }{27} - \frac{3}{10} = \frac{2 \times ({ \frac{3}{2} })^{4} }{27} - \frac{3}{10} = \frac{2 \times \frac{81}{16} }{27} - \frac{3}{10} = \frac{ \frac{81}{8} }{27} - \frac{3}{10} = \frac{3}{8} - \frac{3}{10} = \frac{3}{40}$